*是新规定的这样一种运算法则:a*b=a²+2ab,比如3*(-2)=3²+2X3X(-2)=求2*(-3)的值 2*x=2方程的解 (-2)*(1*x)=x+9方程的解比如3*(-2)=3²+2X3X(-2)=(-3)
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![*是新规定的这样一种运算法则:a*b=a²+2ab,比如3*(-2)=3²+2X3X(-2)=求2*(-3)的值 2*x=2方程的解 (-2)*(1*x)=x+9方程的解比如3*(-2)=3²+2X3X(-2)=(-3)](/uploads/image/z/1802766-30-6.jpg?t=%2A%E6%98%AF%E6%96%B0%E8%A7%84%E5%AE%9A%E7%9A%84%E8%BF%99%E6%A0%B7%E4%B8%80%E7%A7%8D%E8%BF%90%E7%AE%97%E6%B3%95%E5%88%99%EF%BC%9Aa%2Ab%3Da%26sup2%3B%2B2ab%2C%E6%AF%94%E5%A6%823%2A%EF%BC%88-2%EF%BC%89%3D3%26sup2%3B%2B2X3X%28-2%29%3D%E6%B1%822%2A%EF%BC%88-3%EF%BC%89%E7%9A%84%E5%80%BC+2%2Ax%3D2%E6%96%B9%E7%A8%8B%E7%9A%84%E8%A7%A3+%EF%BC%88-2%29%2A%281%2Ax%29%3Dx%2B9%E6%96%B9%E7%A8%8B%E7%9A%84%E8%A7%A3%E6%AF%94%E5%A6%823%2A%EF%BC%88-2%EF%BC%89%3D3%26%23178%3B%2B2X3X%28-2%29%3D%EF%BC%88-3%EF%BC%89)
*是新规定的这样一种运算法则:a*b=a²+2ab,比如3*(-2)=3²+2X3X(-2)=求2*(-3)的值 2*x=2方程的解 (-2)*(1*x)=x+9方程的解比如3*(-2)=3²+2X3X(-2)=(-3)
*是新规定的这样一种运算法则:a*b=a²+2ab,比如3*(-2)=3²+2X3X(-2)=
求2*(-3)的值 2*x=2方程的解 (-2)*(1*x)=x+9方程的解
比如3*(-2)=3²+2X3X(-2)=(-3)
*是新规定的这样一种运算法则:a*b=a²+2ab,比如3*(-2)=3²+2X3X(-2)=求2*(-3)的值 2*x=2方程的解 (-2)*(1*x)=x+9方程的解比如3*(-2)=3²+2X3X(-2)=(-3)
2*(-3)=2²+2x2x(-3)=4-12=-8
2*x=2 推出 2²+2x2xX=2 化简4X=-2 X=-1/2
(-2)*(1*x)=x+9 推出 (-2)²+2x(-2)x(1²+2x1xX)=X+9 化简 9X=-9 X=-1
2*(-3)=4-2*3*2=-8
2*x=2
4+4x=2
4x=-2
x=-0.5
(-2)*(1*x)=x+9
4-4x=x+9
5x=-5
x=-1
2*(-3)=2²+2×2×﹙-3﹚=-8
2*x=2 4+4x=2 x=-½
1*x=1+2x
(-2)*(1*x)=x+9
4+2×﹙-2﹚﹙x+9﹚=x+9
4-4x-36=x+9
-4x-x=9-4+36
-5x=41
x=-8.2
2*(-3)
=2²+2X2X(-3)
=4-12
=-8
2*x=2
4+4x=2
4x=-2
x=-1/2
(-2)*(1*x)=x+9
4-4(1*x)=x+9
4-4(1+2x)=x+9
4-4+8x=x+9
7x=9
x=9/7